full screen toggle not working

(version 2018.1.1f1)
i have a toggle which is being called by a checkbox.

Code (CSharp):

1. public void SetFullScreen(bool isFullscreen)
2.     {
3.         Screen.fullScreen = isFullscreen;
4.     }

when i click the checkbox (after building the game) it doesnt toggle.
but when i exit fullscreen with alt+Enter and then click the checkbox it enters fullscreen again. but it wont switch back to windowed.

(the on value change event on the checkbox is selected as dynamic bool)

 

I observed the same issue.
Did you manage to fix it?

 

not yet. i will let you know if i find a solution!

 

i have been asking around and no one was able to help. could this be a bug in the unity version?

 

Any update on this? We're having the same issue with 2018.1.6f1 and aren't having much luck finding a workaround.

EDIT: It's worth noting that the toggle code worked in prior updates, so this is almost certainly a new issue.

EDIT 2: Found in the Issue Tracker. Please place a vote on https://issuetracker.unity3d.com/is...-unchecked-still-makes-game-start-full-screen to see this prioritized.

 

thanks alot for your research! i voted for the issue. hopefully this will get fixed soon

 

I seem to have this in 2018.1.6f1 as well. In Player Settings, I've set Full Screen mode to Windowed, checked Allow Fullscreen Switch and in code I do

Code (CSharp):

1. Screen.fullScreenMode = FullScreenMode.Windowed;
2. Screen.fullScreen = false;

But still not working.

Voted on the issue.

 

I got the same issue, but to solve that i have done

Code (CSharp):

1. Screen.SetResolution(Screen.width, Screen.height, true);

 

Hi, this code worked for me:

Code (CSharp):

1.     public static bool FullScreenMode
2.     {
3.         get { return Screen.fullScreen; }
4.         set
5.         {
6.             FullScreenMode mode =value
7.                 ? UnityEngine.FullScreenMode.ExclusiveFullScreen
8.                 : UnityEngine.FullScreenMode.Windowed;
9.  
10.             Screen.fullScreen = value;
11.             Screen.SetResolution(Screen.width, Screen.height, mode);
12.         }
13.     }

 

Was fixed in Unity 2018.1.8: https://unity3d.com/unity/whatsnew/unity-2018.1.8 issue 1025120.

 

The fix is no longer working on Unity 2018.2.20f1.....
Anyone else have any ideas?

 

Happening again on 2020.2.7f1 :/

 

This code worked for me (notice the use of Screen.currentResolution.width, which gives you the screen current resolution instead of Screen.width, which gives you the window resolution):

Edited: I set an initial rez value so the windowed mode isn't 0,0 (too small).

Code (CSharp):

1.  
2.         Vector2Int rez = new Vector2Int(1600, 900);
3.         public void ToggleFullScreen()
4.         {
5.             FullScreenMode mode;
6.             if (Screen.fullScreenMode == FullScreenMode.Windowed)
7.             {
8.                 //Save the windowed size
9.                 rez.y = Screen.height;
10.                 rez.x = Screen.width;
11.                 //
12.                 mode = FullScreenMode.FullScreenWindow;
13.                 Screen.SetResolution(Screen.currentResolution.width, Screen.currentResolution.height, mode); //This is the important part!
14.             }
15.             else
16.             {
17.                 mode = FullScreenMode.Windowed;
18.                 Screen.SetResolution(rez.x, rez.y, mode);
19.             }
20.         }